Kaishan Ships 100th DTH Drill Rig to Latin American Mining Client

What a Mining DTH Package Actually Contains

A fleet order is not a single machine. A typical mining DTH package pairs each rig with a matched high pressure compressor, a hammer and bit selection suited to the rock, a drill string sized to the hole depth and diameter, and a spares kit covering the first service interval. On a 4 to 6 inch hole, that usually means a hammer in the 4 to 6 inch class and button bits chosen for the rock's abrasiveness and fracture behaviour. Soft, fractured ground and hard abrasive granite do not take the same bit, and the compressor must deliver enough volume and pressure to keep the hammer efficient. A mismatched compressor is the most common cause of poor penetration rates in the field.

Why Fleet Standardisation Matters to a Mine

Mines that run mixed fleets pay for it in ways that are hard to see at purchase. Standardising on one rig and compressor platform changes the operating economics:

• One set of spares covers the whole fleet, so stockholding and reorder points are simpler.
• One training standard means operators and fitters move between machines without retraining.
• Maintenance intervals and procedures are predictable, which makes planned downtime realistic.
• Cost per metre becomes directly comparable across the fleet, so underperforming rigs or holes are visible quickly.

For a mine running several benches or pits, that comparability is often worth more than a lower unit price on a mixed order.

Commissioning and Operator Training

Delivery is the start of the working relationship, not the end of the sale. Commissioning normally covers mechanical and hydraulic checks, compressor and engine setup, hammer and bit installation, and a test hole to confirm penetration rate and hole straightness. Operator training then focuses on feed force, rotation speed, flushing volume and when to change a bit rather than run it to failure. Fitters are trained on the same schedule so that first-line service stays in-house.

Service Support in Latin American Conditions

Latin American hard rock and high altitude conditions place particular demands on compressor and engine performance. At altitude, air density falls, so a compressor that performs well at sea level may need derating or a larger model to hold hammer pressure. Hard abrasive rock accelerates bit wear and raises consumable cost per metre. Regional service support and local parts stock are what keep availability up: a hammer or compressor that is down for weeks waiting on a shipment costs more than the parts themselves. Buyers should ask about parts stock locations, response times and the availability of trained service technicians in their region before signing a fleet order.

Discussing Your Fleet Requirements

Fleet sizing depends on hole diameter, depth, rock type, altitude and the production target, and those variables change the compressor, hammer and bit recommendation. Kaishan engineers can review your drilling conditions and propose a matched package with a spares and service plan built around them. Contact us to discuss your fleet requirements.